Read the passage carefully and choose the correct answer.
Viet Nam Likely to Face Extreme Weather Conditions by 2050
Viet Nam is likely to continue facing extreme weather conditions such as higher temperatures, lower summer rainfalls, stronger storms, and rising sea levels from now to 2050. Temperatures in northern Viet Nam will rise by between 0.83 degrees Celsius by 2050 and continue its uptrend during the late 21st century. Summer rainfall will decline in most areas. Meanwhile, storms may become rarer but fiercer, causing possible flash floods and landslides in flood-prone areas of northern mountainous, central and central highland provinces. The forecasts suggest sea level rises of 100mm - 400mm along the entire Vietnamese coast by the end of the 21st century, affecting marine biodiversity and coastal communities. The experts emphasize the unpredictability of climate change and its potential impacts to create a variety of dangerous extreme weather events in the future. To raise the public awareness of climate change impacts, the Vietnamese government urges concerned agencies to work together on devising worst-case scenario models and responses by 2020 and calls on international experts to further support Viet Nam in climate change adaptation. Climate change is a real threat to Viet Nam’s socio-economic development. If sea levels rose one meter, five percent of the country’s land, eleven percent of its population and seven percent of its farmland would be affected.
Question: By 2050, Viet Nam continues facing all of these extreme weather conditions EXCEPT _______.
higher temperatures
storms reaching record levels
lower summer rainfalls
rising sea levels
Read of the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
We are using up the world’s petroleum. We use it in our cars and to heat our building in winter. Farmers use petrochemicals to (1) ____ the soil rich. They use them to kill insects which eat plants. These chemicals go (2) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (3) _____ air to other countries and other continents.
Poor farmers use the same land over and over The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests for firewood. In some areas when the trees are gone, the land (4) ______ desert. Poor people can’t save the environment for the future .
This is not a problem for one country or one area of the world. It is a problem for all- humans. The people and the nations of the world must work together to (5) _______ the world’s resources.
Question (5)
recycle
preserve
keep
reuse
Read of the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
We are using up the world’s petroleum. We use it in our cars and to heat our building in winter. Farmers use petrochemicals to (1) ____ the soil rich. They use them to kill insects which eat plants. These chemicals go (2) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (3) _____ air to other countries and other continents.
Poor farmers use the same land over and over The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests for firewood. In some areas when the trees are gone, the land (4) ______ desert. Poor people can’t save the environment for the future .
This is not a problem for one country or one area of the world. It is a problem for all- humans. The people and the nations of the world must work together to (5) _______ the world’s resources.
Question (3)
pollute
polluting
polluted
pollution
Read of the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
We are using up the world’s petroleum. We use it in our cars and to heat our building in winter. Farmers use petrochemicals to (1) ____ the soil rich. They use them to kill insects which eat plants. These chemicals go (2) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (3) _____ air to other countries and other continents.
Poor farmers use the same land over and over The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests for firewood. In some areas when the trees are gone, the land (4) ______ desert. Poor people can’t save the environment for the future .
This is not a problem for one country or one area of the world. It is a problem for all- humans. The people and the nations of the world must work together to (5) _______ the world’s resources.
Question (1)
work
change
make
let
Read of the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
We are using up the world’s petroleum. We use it in our cars and to heat our building in winter. Farmers use petrochemicals to (1) ____ the soil rich. They use them to kill insects which eat plants. These chemicals go (2) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (3) _____ air to other countries and other continents.
Poor farmers use the same land over and over The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests for firewood. In some areas when the trees are gone, the land (4) ______ desert. Poor people can’t save the environment for the future .
This is not a problem for one country or one area of the world. It is a problem for all- humans. The people and the nations of the world must work together to (5) _______ the world’s resources.
Question (4)
gets
changes
turns
becomes
Read the following passage and mark the letter A, B, C, or D on your answer answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of more important air pollutants such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycle. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
For which of the following reasons can natural pollutants play an important role in controlling air pollution?
They function as part of a purification process.
They occur in greater quantities than other pollutants.
They are less harmful to living beings than are other pollutants.
They have existed since the Earth developed.
Read the following passage and mark the letter A, B, C, or D on your answer answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of more important air pollutants such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycle. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "These" in the second paragraph is closest in meaning to _________.
the various chemical reactions
the pollutants from the developing Earth
the compounds mover to the water or soil
the components in biogeochemical cycles
Read the following passage and mark the letter A, B, C, or D on your answer answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of more important air pollutants such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycle. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
What does the passage mainly discuss?
The economic impact of air pollution.
What constitutes an air pollutant.
How much harm air pollutants can cause.
The effects of compounds added to the atmosphere.
Read the following passage and mark the letter A, B, C, or D on your answer answer to each of the questions.
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of more important air pollutants such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycle. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "localized” is closest in meaning to ___________.
specified
circled
surrounded
encircled
Read the following passage and mark the letter A, B, C, or D on your answer answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of more important air pollutants such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycle. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "detectable" in the third paragraph is closest in meaning to _____________.
beneficial
special
measurable
seperable